In the wake of reports of unlikely merger of the Janata Dal-United (JD-U) and the Rashtriya Janata Dal (RJD) ahead of the assembly polls in Bihar later this year, both JD-U leader Nitish Kumar and RJD chief Lalu Prasad said merger was certain.

"Merger is certain, it will take place," Nitish Kumar told the media in Bihar's Aurangabad district. He said the "Janata Parivar" would again become one and a united force.

In New Delhi, the RJD chief said merger of the RJD and the JD-U will have take place.